body {
    position: relative;
}

// 退出
.aa {
    position: absolute;
    z-index: 20;
    margin: 10px;

    .icon-xiangzuo1 {
        color: rgb(255, 255, 255);
        font-size: 24px;
    }
}

// 视频
.videoBox {
    background: #000;
    width: 100%;
    height: 371px;
    margin-bottom: 25px;
    position: relative;


    .video {
        width: 100%;
        height: 371px;
    }

    .jump {
        position: absolute;
        top: 30px;
        height: 100px;
        width: 100%;
        background-color: aqua;
        z-index: 22;

    }


    .videoView {

        width: 100%;
        height: 230px;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        z-index: 33;
        // background: rgb(214, 65, 65);

        .iconfont {
            color: rgb(255, 255, 255);
            font-size: 40px;
            margin-bottom: 19px;
        }

        p {
            color: rgb(255, 255, 255);
            font-size: 14px;
        }
    }


}

// 标题
.courseTitle {
    height: 100px;
    margin: 0 25px;
    border-bottom: 1px solid rgba(187, 187, 187, 1);
    margin-bottom: 20px;


    .TitleTop {
        color: rgba(16, 16, 16, 1);
        font-size: 24px;
        margin-top: 25px;
        margin-bottom: 10px;
    }

    .TitleBot {
        .TitleBotL {
            width: 140px;
        }

        .kil {
            margin-right: 10px;
        }

        .comNum {
            color: rgba(16, 16, 16, 1);
            font-size: 20px;
        }

        .comTex {
            color: rgba(138, 138, 138, 1);
            font-size: 14px;
        }
    }

    .TitleBotR {
        .comR {
            color: rgba(138, 138, 138, 1);
            font-size: 14px;
        }

        .icon-xiangyou1 {
            margin-left: 5px;
            color: rgba(138, 138, 138, 1);
            font-size: 14px;
        }
    }
}

// 课程用户信息
.courseInfo {
    height: 170px;
    margin: 0 25px;

    .userImg {
        width: 80px;
        height: 80px;
        border-radius: 50%;
        // background-color: aqua;
        margin-right: 15px;
    }

    .userInfo {
        .userName {
            color: rgba(16, 16, 16, 1);
            font-size: 18px;
            margin-bottom: 10px;
        }

        .userMess {
            color: rgba(138, 138, 138, 1);
            font-size: 14px;
        }
    }

    .mesBox {
        position: relative;
        margin-top: 20px;
        margin-bottom: 10px;

        .mes {
            color: rgba(138, 138, 138, 1);
            font-size: 16px;
            width: 100%;
            /*限制元素宽度*/
            overflow: hidden;
            /*文本超出隐藏*/
            display: -webkit-box;
            /*盒子模型微弹性伸缩模型*/
            -webkit-box-orient: vertical;
            /*伸缩盒子的子元素垂直排列*/
            -webkit-line-clamp: 2;
            /*文本显示3行*/
            word-break: break-all
        }

        .more {
            position: absolute;
            font-size: 14px;
            color: black;
            bottom: 0px;
            right: 0;
        }

    }


}

// 简介
.introduction {
    height: 70px;
    margin: 0 25px;
    margin-bottom: 36px;

    .introL {
        .introLTop {
            margin-bottom: 10px;
        }

    }

    .comI {
        color: black;
        font-size: 25px;
        margin-right: 5px;

    }

    .comT {
        color: black;
        font-size: 16px;

    }

    .comP {
        color: rgba(138, 138, 138, 1);
        font-size: 14px;
        margin-left: 20PX;
    }

    .introR {
        border-left: 1px dotted rgba(187, 187, 187, 1);
        padding-left: 30px;

        .introRTop {
            margin-bottom: 10px;

        }
    }


}

// 开始训练按钮
.btn {
    margin: 0 32px;
    height: 55px;
    line-height: 55px;
    text-align: center;
    border-radius: 27px;
    background-color: rgba(66, 148, 255, 1);
    color: rgba(255, 255, 255, 1);
    font-size: 18px;
}